docs: def audio_send_stream(self, httptype=None,
                            channel=None, path_file=None, encode=None):
          """
          Params:
  
              path_file - path to audio file
              channel: - integer
              httptype - type string (singlepart or multipart)
  
                  singlepart: HTTP content is a continuos flow of audio packets
                  multipart: HTTP content type is multipart/x-mixed-replace, and
                             each audio packet ends with a boundary string
  
              Supported audio encode type according with documentation:
                  PCM
                  ADPCM
                  G.711A
                  G.711.Mu
                  G.726
                  G.729
                  MPEG2
                  AMR
                  AAC
  
          """
          if httptype is None or channel is None:
              raise RuntimeError("Requires htttype and channel")
  
          file_audio = {
              'file': open(path_file, 'rb'),
          }
  
          header = {
              'content-type': 'Audio/' + encode,
              'content-length': '9999999'
          }
  
          self.command_audio(
              'audio.cgi?action=postAudio&httptype={0}&channel={1}'.format(
                  httptype, channel),
              file_content=file_audio,
              http_header=header
          )